I live in a downstairs flat which I'm quite pleased with and my immediate downstairs next door neighbour we get on with just great.
The problem I have is with my upstairs neighbour. If I happen to be outside in the evening for example and he comes outside for a cigarette or to put rubbish in the bin, he'll come outside in his dressing gown or Adidas tracksuit and I can immediately smell a smell from him that stinks like a mixture of strong body odour and rotting cabbage. The smell is so strong it lingers for a while after he has gone back indoors again. I dread to think what it must be like inside his flat.
How do I best bring this up with him?